Automatic rifle



April 1, 1930.

A. BOCHNAK 1,752,324

AUTOMATIC RIFLE Filed May a, 1929 2 Sheets-Sheet 1 All! INVENTOR Ami/"6w Boo/27ml? ATTORNEY April 1, 1930. A. BOCHNAK 1,752,324

AUTOMATIC RIFLE Filed May 6, 1929 2 Sheets-Sheet 2 INVENTOR gfldrewfioclzrzalt r I WHEY Patented Apr. 1, 1936 ANDREW BOCHNAK, F BOBTOVVN, PENNSYLVANIA AUTOMATIC RIFLE Application filed May 6,

This invention relates to new and useful improvements in rifles and has particular reference to automatic rifles.

The invention has for an object the provision of a device of the class mentioned which is of simple durable construction, dependable in use and efficient in action, and which may be manufactured and sold at a reasonable cost.

For further comprehension of the invention, and of the objects and advantages thereof, reference will be had to the following description and accompanying drawings, and to the appended claims in which the various novel features of the invention are more particularly set forth.

In the accompanying drawing forming a material part of this disclosure Fig. 1 is a side elevational view of a rifle constructed according to this invention.

Fig. 2 is a fragmentary side elevational view of the rifle shown in Fig. 1 with the cartridge wheel removed.

Fig. 3 is an enlarged detailed sectional View of a portion of the rifle shown in Fig. 1.

Fig. fl: is an enlarged detail view of a portion of Fig. 3.

Fig. 5 is a fragmentary horizontal sectional view taken on the line 55 of Fig. 4.

Fig. 6 is a horizontal sectional view taken on the line 66 of Fig. 4.

Fig. 7 is a side elevational view of the cartridge wheel, per se.

Fig. 8 is a similar view of a cartridge wheel constructed according to the modified form.

Fig. 9 is a fragmentary plan view of the cartridge wheel shown in Figs. 7 and 8.

Fig. 10 is a fragmentary sectional view taken on the line 10-10 of Fig. 9.

Fig. 11 is a sectional view taken on the line 11-l1 of Fig. 9.

The reference numeral 12 indicates generally the central casing of a rifle having a barrel 13 connected with the fronts of the Casing and a stock it connected with its rear. Sights 15 are mounted upon the central casing and the barrel for aiding in the aiming of the rifle. The central casing 12 is formed with a cartridge wheel passage 16 and with a depending arm 17. A shaft 18 1929. Serial No. 360,874.

projects from the arm 17 and rotatively supports a cartridge wheel 19 for passage thru the opening 16. A look nut 20 holds the cartridge wheel against displacement.

The cartridge wheel 19 illustrated in 'Fig. 7 consists of a hub portion 21, spokes 22 and a rim'with internal gear teeth 23. A plurality of cartridge chambers 24 are mounted uponthe periphery of the rim. Cartridges 25 are shown engaged within each of the cartridge chambers. The cartridge wheel 19 illustrated in Fig. 8 is similar to the one shown in Fig. 7 but differs in that spur gear teeth 23 are arranged on the rim' thereof in lieu of the internalgear teeth 23.

A gear 26 is supported upon a shaft 27 rotatively mounted in the central casing 12, and gear 26 is'arrange'd to mesh with the internal gear teeth 19 of the cartridge wheel.

VVhenthe gun is constructed with the cartridge wheel illustrated in Fig; 8 the gear26 is arranged to mesh with the spur gear teeth 23. A bevel pinion 28 is fixed upon the shaft 27 and meshes with a second bevel pinion 29 arranged on a shaft 30soas to transmit rotation in one direction only. For. this purpose the gear 29 is formed with several curve-d recesses '31 and rollers 32 engageinthese recesses. A disk 33 is fixed upon the shaft 30 and has a peripheral recess 34. engageable by a tooth 35 of a plunger 36 normally urged outwards by an expansion spring 37.

A lug-38 uponacartridge hammer 39 is engageable against theouter end of the plunger 36 for moving the plunger inwards each time the triggerfil'O is operated. The innermotion .of-the plunger is communicated to the gear 26 for moving the cartridge holder toalign a new cartridge25 with the barrell3. Trigger 10 is pivotally mounted as at :41 and the bottom end'is protected against accidental motion by aguand42. the top end acts against the lug 38. The hammer 39 is normally held in anopened position by a spring 13. Aligned with the firing position with the hammer 39 is a firing pin 44 normally held in an inoperative pcsitionby an expansion spring 15 and being providedwith a head 46 engageable against the rear-ofthe bullet 25 for discharging the same.

Each of the cartridge chambers 24 is formed with lateral openings 47. Catch levers 48am pivotally mounted as at 49 between adjacent cartridge chambers and are pro- 7 edge 53 engageable by cam lugs 54 projecting from a ring 55 slidably mounted upon the cartridge chambers. This ring is provided with rear projections 56 formed with elongated slots 57 engaged by pins 58 to limit the slidable movements or the ring, Springs 59 normally urge the ring into an operative position.

The ring 55 may be manually moved against the action'of the spring 59 so that the cam lugs 54 act against the inclined edges 53 of the catch levers for simultaneously raising the heads out of engagement with the slots 51 of the cartridges. This permits a removal of the cartridges and'replacement with new ones. \Vhen the ring is'released it automatically moves to its inoperative position and springs 52 move the heads 50 of the catch levers into their engaging positions.

cartridge distance upon operation of a trigger of the. rifle, said cartridge wheel being provided with means for holding cartridges against accidental displacement, includinig pivoted levers engageable with the cartridges, and means for unitarily moving the levers ,into inoperative positions, consisting of a ring with cam lugs actuable against inclined endson the levers.

In testlmony whereof I have affixed my signature. v ANDY BOGHNAK;

While I have shown and described the preferred embodiment of my invention, it is to be understood that I do not limit myself to the precise construction herein disclosed and the right is reserved to all changes and modific'ations coming within the scope'of the in vention as defined in the appended claims.

Having thus described my invention, what I claim as new, and desire to secure by United States Letters Patent is 1. In a rifle of the class described, a central casing with a cartridge wheel passage, an

arm depending from the casing, a cartridge wheel mounted on the arm and formed with gear teeth, and means including the gear teeth for advancing the cartridge wheel a cartridge distance upon operation of a trigger of the rifle, said cartridge wheel .being provided with means for holding cartridges against accidental displacement, including pivoted leversengageable withthe cartridges.

2. In a rifle of the class described, a central casing with a cartridge wheel passage,

an arm depending from the casing, a car tridge wheel mounted on the arm and formed. 7

with gear teeth, and means including the gear teeth for advancing the cartridge wheel acartridge distance upon operation of a trigger of the rifle, said cartridge wheel beingprovided with. means for holding cartridges against accidental displacement, including pivoted levers engageable with the cartridges,

and means for unitarily moving the levers 7 into inoperative positions. 7 V 3. In a rifle of the class described, a cen- 

